RX 330 AWD V6-3.3L (3MZ-FE) (2004)
B- Ignition SW and SW 1 on
C- Ignition SW, SW 1 and Relay on (SW 2 off)
b. Using a voltmeter, connect the negative lead to a good ground point or negative battery terminal, and the positive lead to the connector or
component terminal.
This check can be done with a test light instead of a voltmeter.